Improvement in thill-couplings



0. E. PIOKERING'.

Thill-Cou'pling. No. 198,041. Patented Dem 11,1877.

' WITNESSES: VENTOR:

A BNEYS,.

UNITED STATESPATENT OFFICE.

CARLTON E. PIGKERING, OF HORNELLSVILLE, NEW YORK.

IMPROVEMENT IN THILL-COUPLINGSL Specification forming part of LettersPatent No. 198,041, dated December 11, 1877 application filed November6, 1877.

To all whom it may concern:

Be it known that I, CARLTON E. PIcKER- ING, of Hornellsville, in thecounty of Steuben and State of New York, have invented a new and usefulImprovement in Thill-Gouplings, of which the following is aspecification:

Figure 1 is a top view of my improved thillcoupling. Fig. 2 isavertical" section of the same, taken through the line as m, Fig. 1.Fig. 3 is a detail perspective view of the packing.

Similar letters of reference indicate corresponding parts.

The object of this invention is to furnish an improved chill-couplingwhich shall be so constructed as to hold the thills or pole securely,while allowing them to be readily and quickly attached and detached, andwhich shall be noiseless when in use. p The invention will first bedescribed in connection with the drawing, and then pointed out in theclaim.

A represents two lugs formed uponthe forward arm of the bow, or upon theforward end of the yoke of an axle-clip.

To and between the forward ends of the lugs A is pivoted a block, B, theupper rear part of which is rounded off, and its upper forward part hasa notch formed in it.

C is the thill-iron, upon the rear end of which is formed a double hook,the rear arm of which is curved to pass around and fit upon the upperand rear parts of the pivoted block B, and its forward arm is straight,to fit into the notch in the upper forward part of the said pivotedblock B.

To the forward side ofthe lower part of the block B is attached aspring-catch, D, which overlaps the forward side of the forward arm ofthe thill-iron hook, and has a hole formed in it to receive and catchupon a pin. attached to said forward arm.

By this construction, by drawing back the springoatch D, the thill-ironhook may be lifted-off the pivoted block B.

In a chamber or seat formed between the bases of the lugs A is placedthe packing E F,

which is formed by inclosing a block of rubber, E, upon its forwardside, and its upper and lower edges by a metal cap, F. The middle partof the cap F is cut away, to allow the rubber E to bear against the reararm of the double hook of the thi11-iron 0.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- I and the packing E, all arranged as shownanddescribed.

CARLTON E. PIOKERING. Witnesses:

HARRIS O. SAWYER, JAMES A. LYON.

